The Lens Blank,ophthalmic,multifocal, cataloged under National Stock Number 6540-01-614-4093, is classified within Federal Supply Class 6540 (Ophthalmic Instruments, Equipment, and Supplies) of the Medical, Dental, and Veterinary Equipment group. The manufacturer of record is Lyric Optical Company, Inc. Div Lyric Optical Dba Super Optical International. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 6540-01-614-4093 |
| Primary Part Number | 067513-4302 |
| Item Name | Lens Blank,ophthalmic,multifocal |
| FSC / FSG | 6540 / 65 — Ophthalmic Instruments, Equipment, and Supplies |
| Manufacturer | Lyric Optical Company, Inc. Div Lyric Optical Dba Super Optical International |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| 067513-4302 PRIMARY | Lyric Optical Company, Inc. Div Lyric Optical Dba Super Optical International (USA) |
| Reference | Meaning |
|---|---|
| 297931 | 5/1 Secondary reference U.S. Government activity |
| 6540NCM128766 | 5/1 Secondary reference Defense Medical Standardization Board |
NSN 6540-01-614-4093 is a Lens Blank,ophthalmic,multifocal, manufactured by Lyric Optical Company, Inc. Div Lyric Optical Dba Super Optical International, classified under FSC 6540, Ophthalmic Instruments, Equipment, and Supplies. Status: active.
NSN 6540-01-614-4093 has 1 manufacturer part number on file: 067513-4302 (Lyric Optical Company, Inc. Div Lyric Optical Dba Super Optical International).
1 possible match (shared part number, not a government interchangeability claim): 5930-01-677-9475. Verify interchangeability with system specifications before substitution.
Key specifications for 067513-4302: Special Features: MULTIFOCAL LENS 75 MM FT28 4 BASE 3.00 ADD LEFT; FOR USE WITH END ITEM NSN 6540-01-604-9603 MULTIVISION FABRICATION SYSTEM MM; Part Name Assigned by Controlling Agency: LENS MULTIFOCAL 75MM FT28 4 BASE 3.00 ADD LEFT MM; End Item Identification: 6540-01-604-9603 OPHTHALMIC LENS FABRICATION SYSTEM. 0 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.